From: Icenowy Zheng <icenowy@aosc.xyz>
Date: Tue, 20 Dec 2016 05:58:26 +0000 (+0800)
Subject: ARM: dts: sun8i: add a delay after reset xr819 on Orange Pi Zero
X-Git-Tag: v4.11-rc1~87^2~4^2~35
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b5fa16b62042382a72e09d2a463fe41914f62b96;p=karo-tx-linux.git

ARM: dts: sun8i: add a delay after reset xr819 on Orange Pi Zero

XR819 seems to need a delay after its reset line to be deasserted,
otherwise it may not respond MMC commands correctly, and fail to
initialize.

Add a 200ms delay in the mmc-pwrseq.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---

diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
index d18807f73060..b7ca916d871d 100644
--- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
+++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
@@ -92,6 +92,7 @@
 	wifi_pwrseq: wifi_pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>;
+		post-power-on-delay-ms = <200>;
 	};
 };